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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 277 · 40 questions
TalentJR

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

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  1. 1.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) black cloth (d) dark soil
  2. 2.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  3. 3.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) a dull brick (d) dark soil
  4. 4.True or false: a dull brick reflects light well. (a) False (b) True
  5. 5.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it looks shiny (c) so it can float (d) to make it heavy
  6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
  7. 7.True or false: sticky tape is needed for the periscope. (a) False (b) True
  8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
  9. 9.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a balloon (c) an empty juice carton (d) a ruler
  10. 10.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
  11. 11.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) a balloon (d) vinegar
  12. 12.True or false: a dull brick reflects light poorly. (a) False (b) True
  13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
  14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
  15. 15.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a battery cell (c) yeast (d) vinegar
  16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
  17. 17.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a dull brick (d) still clear water
  18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we measure it (b) we change it (c) we keep it the same
  19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) yeast
  20. 20.🧺 Which of these is needed for the periscope? (a) a ruler (b) a magnet (c) a battery cell (d) a balloon
  21. 21.True or false: turmeric powder is needed for the periscope. (a) False (b) True
  22. 22.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) yeast
  23. 23.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
  24. 24.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  25. 25.🔭 How many mirrors does a simple periscope use?
  26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
  27. 27.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a magnet (c) a ruler (d) two small mirrors
  28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
  29. 29.True or false: a ruler is not needed for the periscope. (a) True (b) False
  30. 30.True or false: aluminium foil reflects light poorly. (a) False (b) True
  31. 31.True or false: a shiny steel plate reflects light well. (a) True (b) False
  32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a ruler (d) a balloon
  33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
  34. 34.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
  35. 35.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) a dull brick (d) dark soil
  36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) two small mirrors (d) turmeric powder
  37. 37.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a mirror (d) black cloth
  38. 38.True or false: yeast is not needed for the periscope. (a) False (b) True
  39. 39.True or false: a ruler is needed for the periscope. (a) True (b) False
  40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same light (c) how clear the view is (d) the same mirrors

Answer key

  1. a mirror
  2. not needed
  3. a shiny steel plate
  4. False
  5. so light reaches the eye
  6. False
  7. True
  8. 2
  9. a balloon
  10. not needed
  11. an empty juice carton
  12. True
  13. False
  14. plastic safety mirrors
  15. sticky tape
  16. the Sun
  17. still clear water
  18. we keep it the same
  19. yeast
  20. a ruler
  21. False
  22. yeast
  23. needed
  24. reflects light well
  25. 2
  26. True
  27. a magnet
  28. we keep it the same
  29. False
  30. False
  31. True
  32. a balloon
  33. False
  34. a grown-up
  35. aluminium foil
  36. turmeric powder
  37. a mirror
  38. True
  39. True
  40. how clear the view is

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